NIKE Womens Dri Fit 5" Epic Run Tight Fit Running Boy Shorts, Medium, 645474 612 86% Polyester/14% Spandex Machine Washable Quick drying running shorts. Dri-Fit material wicks away sweat, keeping you cool and dry Fabric composition: 86% Polyester/14% Spandex. Fitted, streamlined design conforms to the shape of your body and reduces bulk for great range of motion. The fabric contains a higher elastane content than traditionally used in Nike Running tights, resulting in a softer touch and a thicker, more supportive feel. Secure zippered pocket on the center-back and two internal drop-in pockets offer multiple storage options for small items like keys, IDs and earbuds Reflective elements for visibility in low light. 5" inseam for coverage without limiting range of motion.